class Student(object):
        def __init__ (self,name,gender,tel,):
            self.name = name
            self.gender = gender
            self.tel = tel

        def __str__(self):
                return f'{self.name},{self.gender},{self.tel}'


#aa = Student('xiaoming','nv',111)
#print(aa)
            
aa = Student('xiaoming','nv',111)
print(aa)